The story
- Proto-Indo-European*kʷ-
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élis
- Proto-Indo-European*kʷh₂élis?
- Proto-Italic*kʷālis
- Latinquālis
- Latinquāle
- English todayquale
A direct borrowing from Latin quāle.
Etymology from Wiktionary, CC BY-SA 4.0.